//
//  NSObject+Category.m
//  OnionHome
//
//  Created by fengjie on 2019/9/18.
//  Copyright © 2019 FengJie. All rights reserved.
//

#import "NSObject+Category.h"

@implementation NSObject (Category)

/**
 倒计时
 
 @param timeout     总时间
 @param target      点击的控件
 @param waitBlock   倒计时过程中可以再里面做一些操作
 @param finishBlock 完成时执行的block
 */
- (dispatch_source_t)startTime:(NSInteger)timeout Target:(UIView *)target waitBlock:(void(^)(NSInteger remainTime))waitBlock finishBlock:(void(^)(void))finishBlock
{
    __block NSInteger timeOut = timeout;
    
    dispatch_queue_t queue = dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0);
    dispatch_source_t _timer = dispatch_source_create(DISPATCH_SOURCE_TYPE_TIMER, 0, 0,queue);
    dispatch_source_set_timer(_timer,dispatch_walltime(NULL, 0),1.0*NSEC_PER_SEC, 0); //每秒执行
    
    dispatch_source_set_event_handler(_timer, ^{
        
        if(timeOut <= 0)
        { //倒计时结束，关闭
            dispatch_source_cancel(_timer);
            dispatch_async(dispatch_get_main_queue(), ^{
                if (finishBlock)
                {
                    finishBlock();
                }
                target.userInteractionEnabled = YES;
            });
        }else{
            
            dispatch_async(dispatch_get_main_queue(), ^{
                if (waitBlock)
                {
                    waitBlock(timeOut);
                }
                target.userInteractionEnabled = NO;
            });
            timeOut--;
        }
    });
    dispatch_resume(_timer);
    
    return _timer;
}
@end
